0.24) The average atomic mass of a sample of an element X is 80 u. What is the percentage of each isotope"79x and "81x in the sample.

0.24) The average atomic mass of a sample of an element X is 80 u. Wha

1.	0.24) The average atomic mass of a sample of an element X is 80 u. What is the percentage of each isotope"79x and "81x in the sample.
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